How to change dynamo 2.10 to 2.12
If you are using Dynamo for Revit, Civil 3D, Alias, FormIt or another hosted version of Dynamo, you need to update that product to a newer build or version.
If using Dynamo Sandbox (stand alone with no interaction with another application) download 2.12 or another version from DynamoBuilds.com.
if i try to install new one it says something like this what does it mean?